Parallel appliance



Dec. 12, 1944.

P. E. GROW PARALLEL APPLIANCE FIG, 2

Filed Feb. 17, 1944 v IINVENTOR. PAUL E. GRow A'r ToRNEY Patented Dec. 12, 1944 UNITED STATES PATENT -OFF|CE 2,364,784 m m m PARALLEL APPLIANCE Paul E. Grow, Muncie, Ind. ,1 Application February 17, 1944, Serial No. 522348 3 Claims.

This invention relates to improvements in parallel appliances. By this title, being meant corresponding rectangular blocks called parallels, which are capable of being suitably positioned on the bench or the machine table, and upon which said parallels the work piece which is to be operated upon, is supported.

To provide a set (by set being meant a pair) of parallels which are relatively thin in formation in cross section, but which are capable of resting stably in accurate vertical position whether in proximate, or whether in remote relation, and which are self matched and are capable of being readily and conveniently handled, is the object, broadly stated, of my invention. This said general object, as well as other and more specific aims of the invention, and as will presently appear, are accomplished by the new construction, combination and arrangement of parts described in the following specification, and illustrated in the accompanying drawing.

In the drawing Figure 1 is a side view of my new parallel appliance.

Figure 2 is an end view, in the direction of arrow 2 in Figure 1.

Figure 3 is a top plan View, in the direction of arrow 3 in Figure 1, a portion of each of the parallels being broken away and shown in cross section, on broken line 3-3, thereby disclosing to view foot bars of one, and recesses of the other, of said parallels.

Figure 4 is a horizontal top plan sectional view taken on the broken line 4-4, in the direction of arrow 4 in Figure 1.

Figure 5 is a side view of one of the parallels, as seen in the direction of arrow 5 in Figure 3, and removed from its related position.

Figure 6 is a vertical cross section view taken on the broken line B-6, in the direction of arrow 6 in Figure 3.

Figure '7 is a verticalcross sectional View taken on the broken line 1'|, in the direction of arrow 1 in Figure 3. i

In the typical exemplification of my invention as herein shown and described, each parallel consists of a cast metal body piece of open-work formation embodying top portion A, end portion B and B, intermediate portions C and C, and bottom portion D. The bottom portion D of said body piece embodies a widened transverse base as indicated in Figure 2. E designates the' frontal surface or face of said parallel (see Figure 5), the body portion which rises from the median portion of said base.

In the underside of the half portion F of said base, and opening from the face E of said body piece, are spaced transverse recesses G, as indicated in Figures 4, 5 and 7. The other half portion of said base, and which is of depth suitably less than the height of the said recesses, is of divided or slitted formation to constitute a succession of'transverse foot bars J of predetermined length, and which'are in positions alternated with the positions of said recesses. The said recesses are of such dimensions with relation to the dimensions of the said foot bars, that when two parallels of the construction above I When in the closely proximate relation, said parallels appear as in the drawing-the base portions resting stably in position, and being interengaged and mutually retained against longitudinal movement relative to each other.

The said parallels thus being matched, and at the same time interposed and interrelated, the foot bars being received in said recesses, the appliance is not, nor are the parts thereof liable to become confused with others; and the appliance is capable of being readily picked up and carrie by one hand.

The body portions being relatively thin, there is a minimum of accumulation of drillings and chips to be contended with, and such accumulation may be readily raked oif whence it falls to the downwardly inclined surfaces of the outer portions F of the bases and is discharged.

Advantages of my new appliance are that the parallels are stably poised, and whether same are in proximate relation, or are in widely separated relation, are not liable to rock or tip. The top or bearing surface of each of the parallels-being of minimum width, maximum extent of space ,is available between and about the parallels for the accommodation'of sections, shanks, pins and the like (not shown) that may constitute parts of fixture connections, set-up jigs or work.

Matched, as they are, the mutual identity of the parallels is assured. The foot bars of one, having free entry into the recesses of the other, of said parallels; and the body portions of the parallels being of open work formation, said parallels spirit of the invention or sacrificing any of its advantages.

What I claim as my invention is: 1. Anappliance of the kinddescribed, consisting of corresponding support blocks, each having a transverse recess at its base portion, and having a transverse projecting foot bar which is in q the horizontal plane of and is adjacent to said recess, whereby when the blocks are in proximate within the recess of the other block.

2. Anappliance of the kind'described, consisting of corresponding elongated support blocks, each having a succession of transverse recesses at its base portion, and having a succession of tranversely projecting foot bars which are in the horizontal plane of and. are in positions alternated with the positions of said recesses.

3. An appliance of thekind described, consisting of corresponding support blocks, each being 10 rectangular and of openwork formation and em- =bodying a widened base, one side portion of said base being transversely divided. to constitute a I succession of transverse projecting foot bars, and the other side portion of saidbase having transverse-recesses therein and located at positions relation the foot bar of one block isreceived..- alternated with the positions of said foot bars.

PAUL E. GROW. 

